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Cisco 200-901: DevNet Associate exam is an excellent opportunity for professionals who want to validate their skills in software development and automation. DevNet Associate Exam certification demonstrates a high level of expertise in developing and maintaining applications on Cisco platforms using various programming languages and tools. With the right preparation, dedication, and hard work, you can achieve this certification and take your career to the next level.
Cisco 200-901 exam covers a wide range of topics, including the fundamentals of software development, APIs, and Cisco platforms. Candidates are expected to have a strong understanding of programming languages such as Python, JavaScript, and C++. They will also need to be proficient in using development tools such as Git, Docker, and Kubernetes, as well as familiar with software development methodologies such as Agile and Scrum.
NEW QUESTION # 183
A developer starts to learn about building applications that use Cisco APIs. The developer needs access to Cisco security products in a development lab to test the first new application that has been built. Which DevNet resource must be used?
- A. DevNet Code Exchange
- B. DevNet Sandbox
- C. DevNet Automation Exchange
- D. DevNet Communities
Answer: B
NEW QUESTION # 184
A retail store is launching an online presence through their new application. The amount of end- user traffic on the application is expected to fluctuate depending on whether there are sales on or not. The application developer has decided to adopt an application-deployment model that allows them to leverage cloud bursting. Which deployment approach would allow cloud bursting?
- A. local infrastructure
- B. on-premises
- C. hybrid
- D. edge computing
Answer: C
NEW QUESTION # 185
A resource named /item is protected by oAuth2 authentication. An endpoint named /login must request authentication. Which method must be used to access the resource by using the REST API?
- A. Make a POST call to /item that includes the username and password in the body of the request message, and submit it to request access.
- B. Make a GET call to /item, then make a call to /login that includes the username and password in the body of the message, and wait for the authorization code.
- C. Make a POST call to /login including the user credentials in the message, and retrieve a token to insert into the authorization header of the /item call.
- D. Make a GET call to /login that includes the username and password, and retrieve a token to insert into the /item call.
Answer: C
Explanation:
When using OAuth2 authentication for accessing a protected resource via a REST API, the typical flow involves obtaining an access token which can then be used to authenticate subsequent API requests. The correct process is:
POST Call to /login: Make a POST request to the /login endpoint with the user credentials (username and password) in the request body. This call will authenticate the user and, if successful, return an access token.
Use the Token: Use the retrieved token by including it in the Authorization header (usually as a Bearer token) in the request to access the protected resource, in this case, the /item endpoint.
Reference:
OAuth 2.0 Authorization Framework - RFC 6749
NEW QUESTION # 186
An engineer must investigate the problems on a web application and address them to related teams. The engineer verifies the application reachability from the single public IP dress with port and discovers that HTTPS access works to three servers of a network farm with IP 172.16.50.1
.2 and .4. but HTTPS access to the server with IP 172.16.50.3 does : work. Which problem type must be addressed as the cause for the case?
- A. proxy
- B. VPN connectivity
- C. blocked transport port
- D. NAT
Answer: C
Explanation:
The issue described indicates that HTTPS (port 443) access is not working for one specific server (172.16.50.3) in the network farm, while it works for the others. This suggests that the transport port (port
443) might be blocked or filtered for this particular server.
* Transport Port Blocking: Network firewalls or security groups might block specific ports for certain IP addresses.
* Server Configuration: The server might not have the necessary configuration to accept HTTPS connections on port 443.
* Troubleshooting: Verifying firewall rules, security group settings, and server configurations can help identify and resolve the issue.
References:
* Network Troubleshooting Guide: Troubleshooting Network Issues
NEW QUESTION # 187
By default, how does EIGRP determine the metric of a route for the routing table?
- A. It uses a reference bandwidth and the actual bandwidth of the connected link to calculate the route metric.
- B. It uses the bandwidth and delay values of the path to calculate the route metric.
- C. It uses a default metric of 10 for all routes that are learned by the router.
- D. It counts the number of hops between the receiving and destination routers and uses that value as the metric.
Answer: B
Explanation:
Section: IP Connectivity
NEW QUESTION # 188
Drag and drop the types of management from the left onto the levels at which they are performed on the right.
Answer:
Explanation:
NEW QUESTION # 189
Refer to the exhibit.
The definition of the YANG module and a RESTCONF query sent to a Cisco IOc XE device is shown. Which statement is correct if the RESTCONF interface responds with a 204 status code?
- A. The query failed to set the logging seventy level due to an invalid path.
- B. The query failed at retrieving the logging seventy level.
- C. The query retrieved the logging seventy level.
- D. The query updated the logging seventy level or created it if not present on the device.
Answer: D
NEW QUESTION # 190
Refer to the exhibit.
What is the function of the python script?
- A. Loop through the returned list of network devices and, for each device, print the device name management IP address.
- B. Count and print the total number of available devices.
- C. Iterate over a list of network devices and write all device type and associated management IP address.
- D. For each device that is returned, display the device and, for each device, print the device name and management IP address.
- E. Iterate over a list of network devices and write all device names and management IP addresses to an output file.
Answer: A
NEW QUESTION # 191
Which line is an example of the start of a chunk from a unified diff?
- A. @@ -20191007T1200 +20191008T1349@@
- B. @@ -88,10 +88,6 @@
- C. @@ -20191007T1200 +88,90 @@
- D. @@ -90,88 +20191008T1349@@
Answer: B
Explanation:
Reference:
A unified diff file shows differences between two files. Each chunk of changes starts with a line that provides the range of lines affected in the original and new files. The correct format is:
The - symbol indicates the starting line number and the number of lines in the original file.
The + symbol indicates the starting line number and the number of lines in the new file.
@@ -88,10 +88,6 @@ shows that the original file has a chunk starting at line 88 with 10 lines, and the new file has a chunk starting at line 88 with 6 lines.
NEW QUESTION # 192
Drag and drop the descriptions from the left onto correct application deployment models on the right.
Answer:
Explanation:
NEW QUESTION # 193
Refer to the exhibit. Which OWASP threat does this example demonstrate?
- A. man-in-the-middle
- B. broken access control
- C. cross-site scripting
- D. SQL injection
Answer: C
NEW QUESTION # 194
What is the purpose of the first three pairs of digits in a MAC address?
- A. indicates vendor of the network card or adapter
- B. indicates the IP address of the client in Hex
- C. defines a routing identifier for the client
- D. defines packet forwarding priority sent or received by the adapter
Answer: A
NEW QUESTION # 195
A developer needs to prepare the file README.md in the working tree for the next commit operation using Git. Which command needs to be used to accomplish this?
- A. git add README.md staging
- B. git add README.md
- C. git commit README.md
- D. git -a README.md
Answer: B
Explanation:
To prepare the file README.md in the working tree for the next commit operation in Git, the command git add README.md should be used. This command stages the file, meaning it adds the file's current content to the staging area, which is a preparatory step before committing it to the repository.
* git add README.md: Adds the README.md file to the staging area.
* git commit README.md: Commits all staged changes (not just README.md unless it is the only file staged).
References: Pro Git book by Scott Chacon and Ben Straub, Git documentation.
NEW QUESTION # 196
Which way should be used to safely the API keys?
- A. Encrypted in a configuration file that is separate from the code
- B. In an environment variable unique to the system database
- C. Encrypted in the code in a function
- D. Plain text in the code as a constant
Answer: A
Explanation:
Explanation
NEW QUESTION # 197
A developer creates a new application, but the application must be tested before being released to a customer. When a mobile phone that uses 4G is used to access the application, the request fails. Why does the connection to the application fail?
- A. The application must be added to the production server before testing.
- B. The application is hosted on premises and VPN connectivity is required
- C. The application must be moved to the cloud before testing is possible.
- D. The application connectivity is limited to HTTPS protocol.
Answer: B
Explanation:
When a mobile phone using 4G fails to access the application, it is likely because the application is hosted on-premises and requires VPN connectivity to access it. On-premises applications often have network restrictions for security reasons, and access from external networks (such as 4G) typically requires a secure VPN connection to ensure data security and compliance with access policies.
NEW QUESTION # 198
Drag and drop the Python data transformation methods from the left onto the data formats on the right.
Answer:
Explanation:
Reference:
JSON and YAML in Python: JSON Documentation, YAML Documentation
NEW QUESTION # 199
Which HTTP status Code means that the server cannot or will not process the request because of perceived client error?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
The HTTP status code 400 indicates that the server cannot or will not process the request due to a client error.
HTTP Status Code 400 - Bad Request:
Meaning: The server cannot process the request due to a client-side error. This could be due to malformed request syntax, invalid request message framing, or deceptive request routing.
Common Causes: Typical reasons for a 400 Bad Request include incorrect URL formatting, invalid query parameters, or unsupported characters in the request.
Client Error Category: Status codes in the 4xx range indicate client errors, where the problem lies with the request sent by the client rather than the server.
Other Status Codes:
100 - Continue: Informational status code indicating that the initial part of a request has been received and the client can continue with the rest of the request.
203 - Non-Authoritative Information: The server successfully processed the request, but the information may come from a different source.
303 - See Other: The server is redirecting the client to a different resource, typically using the GET method.
Reference:
HTTP Status Codes: MDN Web Docs
RFC 7231: HTTP/1.1 Semantics and Content
NEW QUESTION # 200
What are two security benefits of a Docker-based application? (Choose two.)
- A. guarantees container images are secured and free of vulnerabilities
- B. easier to patch because Docker containers include only dependencies that the application requires
- C. prevents information leakage that can occur when unhandled exceptions are returned in HTTP responses
- D. natively secures access to secrets that are used by the running application
- E. allows for separation of applications that traditionally run on the same host
Answer: A,D
NEW QUESTION # 201
Which tool provides a testing environment to run tests on network devices and perform network automation scenarios?
- A. Visual Studio Code
- B. Cisco Packet Tracer
- C. pyATS
- D. Cisco VIRL
Answer: C
Explanation:
pyATS (Python Automated Test Systems) is a comprehensive testing framework developed by Cisco, designed specifically for automating the testing of network devices. It provides a robust and flexible environment for creating and running tests on network devices and simulating network automation scenarios.
* pyATS enables the creation of reusable test scripts and workflows that can be applied across different network environments and devices.
* It supports various protocols and devices, allowing for extensive testing coverage.
* It integrates well with other Cisco network automation tools and frameworks, making it a versatile choice for network engineers and developers.
References:
* Cisco DevNet pyATS documentation
* Cisco DevNet Associate Certification Guide
NEW QUESTION # 202
How do traditional campus device management and Cisco DNA Center device management differ in regards to deployment?
- A. Cisco DNA Center device management can be implemented at a lower cost than most traditional campus device management options.
- B. Traditional campus device management schemes can typically deploy patches and updates more quickly than Cisco DNA Center device management.
- C. Cisco DNA Center device management can deploy a network more quickly than traditional campus device management.
- D. Traditional campus device management allows a network to scale more quickly than with Cisco DNA Center device management.
Answer: C
Explanation:
Section: Automation and Programmability
NEW QUESTION # 203
A new application is being developed that must be hardware independent. The application includes an administrative component which is accessed using a Windows desktop GUI.
Installation and management of the environment must be fully automated. Which application deployment type meets the requirements?
- A. bare metal
- B. virtual Python environment
- C. virtual machine
- D. container
Answer: D
NEW QUESTION # 204
Drag and drop elements of the RESTCONF protocol stack from the left onto the correct description on the right. Not all elements on the left are used.
Answer:
Explanation:
Explanation
1 - B, 2 - E, 3 - F
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/169/b_169_programmability_cg/restconf_
NEW QUESTION # 205
Drag and drop the network automation interfaces from the left onto the transport protocols that they support on the right.
Answer:
Explanation:
Explanation
gRPC = C, NETCONF = A, RESTCONF = B, D
OR
NEW QUESTION # 206
Which Cisco compute management platform controls server, network, storage, and virtual resources with policy-driven management for up to 10000 physical Cisco servers?
- A. Cisco HyperFlex
- B. Cisco DNA Center
- C. UCS Central
- D. Cisco Intersight
Answer: C
NEW QUESTION # 207
......
Cisco 200-901 (DevNet Associate) Certification Exam is an excellent certification for anyone who is interested in pursuing a career in software development or network automation. It is highly recognized by employers and is a stepping stone to advanced Cisco certifications. Preparing for the exam requires dedication and commitment, but with the right study materials and practice, candidates can pass the exam and boost their careers in the IT industry.
Pass Your Cisco Certified DevNet Associate 200-901 Exam on Dec 21, 2025 with 484 Questions: https://pass4sure.dumps4pdf.com/200-901-valid-braindumps.html